CVE-2021-34593

published 2021-10-26

CVE-2021-34593: In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid requests may result in several…

Priority P3 42 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid requests may result in several denial-of-service conditions. Running PLC programs may be stopped, memory may be leaked, or further communication clients may be blocked from accessing the PLC.

Affected

17 ranges

Vendor	Product	Version range	Fixed in
codesys	codesys_v2	>= PLCWinNT < V2.4.7.56	V2.4.7.56
codesys	codesys_v2	>= Runtime Toolkit 32 bit full < V2.4.7.56	V2.4.7.56
codesys	plcwinnt	< 2.4.7.56	2.4.7.56
codesys	runtime_toolkit	< 2.4.7.56	2.4.7.56
wago	750-8202_firmware	< fw20	fw20
wago	750-8203_firmware	< fw20	fw20
wago	750-8204_firmware	< fw20	fw20
wago	750-8206_firmware	< fw20	fw20
wago	750-8207_firmware	< fw20	fw20
wago	750-8208_firmware	< fw20	fw20
wago	750-8210_firmware	< fw20	fw20
wago	750-8211_firmware	< fw20	fw20
wago	750-8212_firmware	< fw20	fw20
wago	750-8213_firmware	< fw20	fw20
wago	750-8214_firmware	< fw20	fw20
wago	750-8216_firmware	< fw20	fw20
wago	750-8217_firmware	< fw20	fw20

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd v2.0 5.0 MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P

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CWE-755